Gene Armor

He had the same dream again. He dreamed that black mist enveloped the earth, and prosperity was submerged in darkness. He dreamed that monsters in the black fog opened their fangs and smiling children turned into withered bones. He dreamed that magnificent mountains and rivers were wiped out in an instant, and the long flow of history suddenly stopped. He also dreamed of a fearless figure wearing light blue thunder armor. Under the setting sun, his clothes were stained with blood. Thousands of demons were attacking, and one person was guarding a barrier alone. The black mist reappears, what should the sinister boy do?